A pump which supplies water at the rate of 200 cubic metre per hour is driven by a 20-kWh electric motor having an efficiency of 80%. The pressures at the inlet and exit of the pump are 100 and 316 kPa, respectively and the potential energy change across the pump is negligible. The inlet and exit pipes are of the same diameters. Determine the mechanical efficiency of the pump.
A pump which supplies water at the rate of 200 cubic metre per hour is driven by a 20-kWh electric motor having an efficiency of 80%. The pressures at the inlet and exit of the pump are 100 and 316 kPa, respectively and the potential energy change across the pump is negligible. The inlet and exit pipes are of the same diameters. Determine the mechanical efficiency of the pump.
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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A pump which supplies water at the rate of 200 cubic metre per hour is driven by a
20-kWh electric motor having an efficiency of 80%. The pressures at the inlet and exit of the
pump are 100 and 316 kPa, respectively and the potential energy change across the pump is
negligible. The inlet and exit pipes are of the same diameters. Determine the
efficiency of the pump.
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